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| author | Peng Tao | 2014-10-10 17:25:46 +0200 |
|---|---|---|
| committer | Tom Haynes | 2015-02-03 20:06:47 +0100 |
| commit | 566f8737630390b743d79e26e4ac855fe2758129 (patch) | |
| tree | 974b19ea87f8185b4442657a51a0ce27fc70998c | |
| parent | pnfs: fail comparison when bucket verifier not set (diff) | |
| download | kernel-qcow2-linux-566f8737630390b743d79e26e4ac855fe2758129.tar.gz kernel-qcow2-linux-566f8737630390b743d79e26e4ac855fe2758129.tar.xz kernel-qcow2-linux-566f8737630390b743d79e26e4ac855fe2758129.zip | |
nfs41: add a debug warning if we destroy an unempty layout
So that we can detect the case if some layout segments are still
pinned which is surely a bug that we need to fix.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
| -rw-r--r-- | fs/nfs/pnfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 5f7c422ebb5d..e123cfce54ee 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -242,6 +242,8 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) struct inode *inode = lo->plh_inode; if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) { + if (!list_empty(&lo->plh_segs)) + WARN_ONCE(1, "NFS: BUG unfreed layout segments.\n"); pnfs_detach_layout_hdr(lo); spin_unlock(&inode->i_lock); pnfs_free_layout_hdr(lo); |